This is the Spanish translation of the popular Pocket Ref.

I was doing a seminar on Long Island when a guy in the audience asked a question that I couldn't answer. It was one of those obscure bits of information that I just couldn't dig out of my brain, and I said so. A few moments later, another of the attendees raised his hand and told me he had the answer. Then he read it from this little gem of a book he had taken from his jacket pocket.

During the break, I asked him to show me the book and he handed me the Pocket Ref. "Where'd you get this?" I asked. He told me about this company in Colorado that publishes them and then offered me his. "I'll get another," he said. "They only cost ten bucks." I took the book and gladly pushed a ten-dollar bill at him. It was some of the best money I've ever spent.

My Pocket Ref has been on my desk ever since. I use it every day, whether to find an obscure conversion factor, or a telephone area code. It's like having a technical encyclopedia in your pocket. Here, look at the categories of information you'll find within Pocket Ref's 542 pages:
Air
Automotive
Carpentry & Construction
Computers
Constants - Physical
Electrical
Electronics
General Information
General Science
Geology
Glues, Solvents, Paints
Hardware
Math
Mining & Milling
Weights of Materials
Plumbing & Pipe
Rope, Cable, Chain
Steel & Metals
Surveying & Mapping
Water

No pocket (or desk!) should be without this great little book. Add one to your order. I promise you won't be sorry.

Dan Holohan